Indicating user equipment capability for channel state information measurement

ABSTRACT

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit an indication of a quantity of reference signals that the UE supports for measuring CSI within one or more slots. A base station may determine a quantity of reference signals to transmit to the UE for CSI measurement based at least in part on the indication. The UE may receive, and the base station may transmit, one or more reference signals in a slot of the one or more slots based at least in part on transmitting the indication of the quantity of reference signals, and may transmit an indication of one or more measurements of the received one or more reference signals. Numerous other aspects are described.

CROSS-REFERENCE TO RELATED APPLICATION

This Patent Application claims priority to Provisional PatentApplication No. 62/968,944, filed on Jan. 31, 2020, entitled “INDICATINGUSER EQUIPMENT CAPABILITY FOR CHANNEL STATE INFORMATION MEASUREMENT,”and assigned to the assignee hereof. The disclosure of the priorApplication is considered part of and is incorporated by reference inthis Patent Application.

FIELD OF THE DISCLOSURE

Aspects of the present disclosure generally relate to wirelesscommunication and specifically, to techniques and apparatuses forindicating user equipment capability for channel state informationmeasurement.

BACKGROUND

Wireless communication systems are widely deployed to provide varioustelecommunication services such as telephony, video, data, messaging,and broadcasts. Typical wireless communication systems may employmultiple-access technologies capable of supporting communication withmultiple users by sharing available system resources (for example,bandwidth or transmit power). Examples of such multiple-accesstechnologies include code division multiple access (CDMA) systems, timedivision multiple access (TDMA) systems, frequency-division multipleaccess (FDMA) systems, orthogonal frequency-division multiple access(OFDMA) systems, single-carrier frequency-division multiple access(SC-FDMA) systems, time division synchronous code division multipleaccess (TD-SCDMA) systems, and Long Term Evolution (LTE).LTE/LTE-Advanced is a set of enhancements to the Universal MobileTelecommunications System (UMTS) mobile standard promulgated by theThird Generation Partnership Project (3GPP).

The above multiple access technologies have been adopted in varioustelecommunication standards to provide a common protocol that enablesdifferent user equipment (UEs) to communicate on a municipal, national,regional, and even global level. New Radio (NR), which may also bereferred to as 5G, is a set of enhancements to the LTE mobile standardpromulgated by the 3GPP. NR is designed to better support mobilebroadband Internet access by improving spectral efficiency, loweringcosts, improving services, making use of new spectrum, and betterintegrating with other open standards using orthogonal frequencydivision multiplexing (OFDM) with a cyclic prefix (CP) (CP-OFDM) on thedownlink (DL), using CP-OFDM or SC-FDMA (for example, also known asdiscrete Fourier transform spread OFDM (DFT-s-OFDM)) on the uplink (UL),as well as supporting beamforming, multiple-input multiple-output (MIMO)antenna technology, and carrier aggregation. However, as the demand formobile broadband access continues to increase, there exists a need forfurther improvements in LTE and NR technologies. Preferably, theseimprovements are applicable to other multiple access technologies andthe telecommunication standards that employ these technologies.

A base station may transmit one or more reference signals to a UE. TheUE may attempt to detect and measure the reference signals to determinea metric associated with a wireless connection with the base station.For example, the UE may measure a layer 1signal-to-interference-plus-noise ratio, or a layer 1 reference signalreceived power. The UE may transmit, to the base station, an indicationof measurements of the reference signals. The base station may use theindication of measurements to configure subsequent communicationsbetween the UE and the base station. For example, the base station mayperform a beam selection process or a beam refinement process based atleast in part on the indication of measurements.

SUMMARY

In some aspects, a method of wireless communication performed by a userequipment (UE) includes transmitting an indication of a quantity ofreference signals that the UE supports for measuring channel stateinformation (CSI) within one or more slots; receiving one or morereference signals in a slot of the one or more slots based at least inpart on transmitting the indication of the quantity of referencesignals, and transmitting an indication of one or more measurements ofthe received one or more reference signals.

In some aspects, a method of wireless communication performed by a basestation includes receiving an indication of a quantity of referencesignals that the UE supports for measuring CSI within one or more slots;transmitting one or more reference signals in a slot of the one or moreslots based at least in part on transmitting the indication of thequantity of reference signals, and receiving an indication of one ormore measurements of the received one or more reference signals.

In some aspects, a UE for wireless communication includes a memory andone or more processors operatively coupled to the memory, the memory andthe one or more processors configured to: transmit an indication of aquantity of reference signals that the UE supports for measuring CSIwithin one or more slots; receive one or more reference signals in aslot of the one or more slots based at least in part on transmitting theindication of the quantity of reference signals, and transmit anindication of one or more measurements of the received one or morereference signals.

In some aspects, a base station for wireless communication includes amemory and one or more processors operatively coupled to the memory, thememory and the one or more processors configured to: receive anindication of a quantity of reference signals that the UE supports formeasuring CSI within one or more slots; transmit one or more referencesignals in a slot of the one or more slots based at least in part ontransmitting the indication of the quantity of reference signals, andreceive an indication of one or more measurements of the received one ormore reference signals.

In some aspects, a non-transitory computer-readable medium storing a setof instructions for wireless communication includes one or moreinstructions that, when executed by one or more processors of a UE,cause the UE to: transmit an indication of a quantity of referencesignals that the UE supports for measuring CSI within one or more slots;receive one or more reference signals in a slot of the one or more slotsbased at least in part on transmitting the indication of the quantity ofreference signals, and transmit an indication of one or moremeasurements of the received one or more reference signals.

In some aspects, a non-transitory computer-readable medium storing a setof instructions for wireless communication includes one or moreinstructions that, when executed by one or more processors of a basestation, cause the base station to: receive an indication of a quantityof reference signals that the UE supports for measuring CSI within oneor more slots; transmit one or more reference signals in a slot of theone or more slots based at least in part on transmitting the indicationof the quantity of reference signals, and receive an indication of oneor more measurements of the received one or more reference signals.

In some aspects, an apparatus for wireless communication includes meansfor transmitting an indication of a quantity of reference signals thatthe UE supports for measuring CSI within one or more slots; means formeasuring one or more reference signals in a slot of the one or moreslots based at least in part on transmitting the indication of thequantity of reference signals, and means for transmitting an indicationof one or more measurements of the received one or more referencesignals.

In some aspects, an apparatus for wireless communication includes meansfor receiving an indication of a quantity of reference signals that a UEsupports for CSI measurement; means for transmitting one or morereference signals in a slot of the one or more slots based at least inpart on transmitting the indication of the quantity of referencesignals, and means for receiving an indication of one or moremeasurements of the received one or more reference signals.

Aspects generally include a method, apparatus, system, computer programproduct, non-transitory computer-readable medium, user equipment, basestation, wireless communication device, or processing system assubstantially described with reference to and as illustrated by thedrawings and specification.

The foregoing has outlined rather broadly the features and technicaladvantages of examples in accordance with the disclosure in order thatthe detailed description that follows may be better understood.Additional features and advantages will be described hereinafter. Theconception and specific examples disclosed may be readily utilized as abasis for modifying or designing other structures for carrying out thesame purposes of the present disclosure. Such equivalent constructionsdo not depart from the scope of the appended claims. Characteristics ofthe concepts disclosed herein, both their organization and method ofoperation, together with associated advantages will be better understoodfrom the following description when considered in connection with theaccompanying figures. Each of the figures is provided for the purposesof illustration and description, and not as a definition of the limitsof the claims.

BRIEF DESCRIPTION OF THE DRAWINGS

So that the above-recited features of the present disclosure can beunderstood in detail, a more particular description, briefly summarizedabove, may be had by reference to aspects, some of which are illustratedin the appended drawings. It is to be noted, however, that the appendeddrawings illustrate only some typical aspects of this disclosure and aretherefore not to be considered limiting of its scope, for thedescription may admit to other equally effective aspects. The samereference numbers in different drawings may identify the same or similarelements.

FIG. 1 is a diagram illustrating an example of a wireless network inaccordance with the present disclosure.

FIG. 2 is a diagram illustrating an example base station (BS) incommunication with a user equipment (UE) in a wireless network inaccordance with the present disclosure.

FIG. 3 is a diagram illustrating examples of channel state information(CSI) measurement beam management procedures, in accordance with thepresent disclosure.

FIG. 4 is a diagram illustrating an example of indicating UE capabilityfor CSI measurement, in accordance with the present disclosure.

FIG. 5 is a flowchart illustrating an example process performed, forexample, by a UE, in accordance with the present disclosure.

FIG. 6 is a flowchart illustrating an example process performed, forexample, by a base station, in accordance with the present disclosure.

FIGS. 7 and 8 are block diagrams illustrating example apparatuses forwireless communication, in accordance with the present disclosure.

DETAILED DESCRIPTION

Various aspects of the disclosure are described more fully hereinafterwith reference to the accompanying drawings. This disclosure may,however, be embodied in many different forms and are not to be construedas limited to any specific structure or function presented throughoutthis disclosure. Rather, these aspects are provided so that thisdisclosure will be thorough and complete, and will fully convey thescope of the disclosure to those skilled in the art. Based on theteachings herein one skilled in the art may appreciate that the scope ofthe disclosure is intended to cover any aspect of the disclosuredisclosed herein, whether implemented independently of or combined withany other aspect of the disclosure. For example, an apparatus may beimplemented or a method may be practiced using any quantity of theaspects set forth herein. In addition, the scope of the disclosure isintended to cover such an apparatus or method which is practiced usingother structure, functionality, or structure and functionality inaddition to or other than the various aspects of the disclosure setforth herein. Any aspect of the disclosure disclosed herein may beembodied by one or more elements of a claim.

Several aspects of telecommunication systems will now be presented withreference to various apparatuses and techniques. These apparatuses andtechniques will be described in the following detailed description andillustrated in the accompanying drawings by various blocks, modules,components, circuits, steps, processes, or algorithms (collectivelyreferred to as “elements”). These elements may be implemented usinghardware, software, or a combination of hardware and software. Whethersuch elements are implemented as hardware or software depends upon theparticular application and design constraints imposed on the overallsystem.

Various aspects relate generally to a UE transmitting, and a basestation receiving, an indication of a quantity of reference signals thatthe UE supports for channel state information (CSI) measurement. Someaspects more specifically relate to the UE transmitting an indication ofa quantity of reference signals, across all component carriers (forexample, of an associated wireless connection), that the UE supports forCSI measurement (for example, for a beam management procedure). In someaspects, the UE may transmit an indication of a quantity of referencesignals supported across all component carriers per frequency range (forexample, frequency range 1 (FR1) or frequency range 2 (FR2), among otherexamples) or an indication of a quantity of reference signals supportedacross all component carriers (for example, a total number of componentcarriers supported in all frequency ranges). In some aspects, thecomponent carriers may include a special cell (SPCell) and one or moresecondary cells (SCells). In some aspects, a numerology or a subcarrierspacing (SCS) of a slot, a sub-slot, a set of slots, or another timedomain resource during which the UE supports the quantity of referencesignals may be associated with a numerology or an SCS of a downlinkbandwidth part of a component carrier of the wireless connection. Forexample, the numerology may be a smallest numerology of all componentcarriers of the wireless connection or the SCS may be a largestsubcarrier spacing of all component carriers of the wireless connection.In some aspects, a numerology or an SCS of a slot, a sub-slot, a set ofslots, or another time domain resource during which the UE supports thequantity of reference signals may be associated with a referencenumerology or SCS (for example, a configured numerology or SCS).

Particular aspects of the subject matter described in this disclosurecan be implemented to realize one or more of the following potentialadvantages. In some examples, the described techniques can be used by abase station to configure a quantity of reference signals used toperform CSI measurement, with the quantity based at least in part on anumber of reference signals supported by the UE. In this way, the basestation may conserve power, computing, communication, or networkresources that may otherwise have been consumed by transmitting aquantity of reference signals for CSI measurement that is greater thanthe quantity of reference signals supported by the UE. Additionally oralternatively, the base station may transmit an increased quantity ofreference signals, based at least in part on the UE supporting theincreased quantity of reference signals, which may improve a beammanagement procedure (for example, allow for testing an increasedquantity of candidate beams) or may reduce an amount of time resourcesto be used to transmit the reference signals.

FIG. 1 is a diagram illustrating an example of a wireless network inaccordance with the present disclosure. The wireless network may be ormay include elements of a 5G (NR) network or an LTE network, among otherexamples. The wireless network may include one or more base stations 110(shown as BS 110 a, BS 110 b, BS 110 c, and BS 110 d) and other networkentities. A base station (BS) is an entity that communicates with userequipment (UEs) and may also be referred to as an NR BS, a Node B, agNB, a 5G node B (NB), an access point, or a transmit receive point(TRP), among other examples. Each BS may provide communication coveragefor a particular geographic area. In 3GPP, the term “cell” can refer toa coverage area of a BS or a BS subsystem serving this coverage area,depending on the context in which the term is used.

A BS may provide communication coverage for a macro cell, a pico cell, afemto cell, or another type of cell. A macro cell may cover a relativelylarge geographic area (for example, several kilometers in radius) andmay allow unrestricted access by UEs with service subscription. A picocell may cover a relatively small geographic area and may allowunrestricted access by UEs with service subscription. A femto cell maycover a relatively small geographic area (for example, a home) and mayallow restricted access by UEs having association with the femto cell(for example, UEs in a closed subscriber group (CSG)). ABS for a macrocell may be referred to as a macro BS. A BS for a pico cell may bereferred to as a pico BS. ABS for a femto cell may be referred to as afemto BS or a home BS. ABS may support one or multiple (for example,three) cells.

The wireless network may be a heterogeneous network that includes BSs ofdifferent types, such as macro BSs, pico BSs, femto BSs, or relay BSs.These different types of BSs may have different transmit power levels,different coverage areas, and different impacts on interference in thewireless network. For example, macro BSs may have a high transmit powerlevel (for example, 5 to 40 watts) whereas pico BSs, femto BSs, andrelay BSs may have lower transmit power levels (for example, 0.1 to 2watts). In the example shown in FIG. 1, a BS 110 a may be a macro BS fora macro cell 102 a, a BS 110 b may be a pico BS for a pico cell 102 b,and a BS 110 c may be a femto BS for a femto cell 102 c. A networkcontroller 130 may couple to the set of BSs 102 a, 102 b, 110 a and 110b, and may provide coordination and control for these BSs. Networkcontroller 130 may communicate with the BSs via a backhaul. The BSs mayalso communicate with one another, for example, directly or indirectlyvia a wireless or wireline backhaul.

In some aspects, a cell may not be stationary, rather, the geographicarea of the cell may move in accordance with the location of a mobileBS. In some aspects, the BSs may be interconnected to one another or toone or more other BSs or network nodes (not shown) in the wirelessnetwork through various types of backhaul interfaces, such as a directphysical connection or a virtual network, using any suitable transportnetwork.

The wireless network may also include relay stations. A relay station isan entity that can receive a transmission of data from an upstreamstation (for example, a BS or a UE) and send a transmission of the datato a downstream station (for example, a UE or a BS). A relay station mayalso be a UE that can relay transmissions for other UEs. In the exampleshown in FIG. 1, a relay BS 110 d may communicate with macro BS 110 aand a UE 120 d in order to facilitate communication between BS 110 a andUE 120 d. A relay BS may also be referred to as a relay station, a relaybase station, or a relay, among other examples.

UEs 120 (for example, 120 a, 120 b, 120 c) may be dispersed throughoutthe wireless network, and each UE may be stationary or mobile. A UE mayalso be referred to as an access terminal, a terminal, a mobile station,a subscriber unit, or a station, among other examples. A UE may be acellular phone (for example, a smart phone), a personal digitalassistant (PDA), a wireless modem, a wireless communication device, ahandheld device, a laptop computer, a cordless phone, a wireless localloop (WLL) station, a tablet, a camera, a gaming device, a netbook, asmartbook, an ultrabook, a medical device or equipment, biometricsensors/devices, wearable devices (smart watches, smart clothing, smartglasses, smart wrist bands, smart jewelry (for example, smart ring,smart bracelet)), an entertainment device (for example, a music or videodevice, or a satellite radio), a vehicular component or sensor, smartmeters/sensors, industrial manufacturing equipment, a global positioningsystem device, or any other suitable device that is configured tocommunicate via a wireless medium.

Some UEs may be considered machine-type communication (MTC) or evolvedor enhanced machine-type communication (eMTC) UEs. MTC and eMTC UEsinclude, for example, robots, drones, remote devices, sensors, meters,monitors or location tags, among other examples, that may communicatewith a base station, another device (for example, remote device), orsome other entity. A wireless node may provide, for example,connectivity for or to a network (for example, a wide area network suchas Internet or a cellular network) via a wired or wireless communicationlink. Some UEs may be considered Internet-of-Things (IoT) devices, ormay be implemented as NB-IoT (narrowband internet of things) devices.Some UEs may be considered a Customer Premises Equipment (CPE). UE 120may be included inside a housing that houses components of UE 120, suchas processor components or memory components, among other examples.

In general, any quantity of wireless networks may be deployed in a givengeographic area. Each wireless network may support a particular radioaccess technology (RAT) and may operate on one or more frequencies orfrequency channels. A frequency may also be referred to as a carrieramong other examples. Each frequency may support a single RAT in a givengeographic area in order to avoid interference between wireless networksof different RATs. In some cases, NR or 5G RAT networks may be deployed.

In some aspects, two or more UEs 120 (for example, shown as UE 120 a andUE 120 e) may communicate directly with one another using one or moresidelink channels (for example, without using a base station 110 as anintermediary). For example, the UEs 120 may communicate usingpeer-to-peer (P2P) communications, device-to-device (D2D)communications, a vehicle-to-everything (V2X) protocol (for example,which may include a vehicle-to-vehicle (V2V) protocol or avehicle-to-infrastructure (V2I) protocol), a mesh network, or acombination thereof. In such examples, the UE 120 may perform schedulingoperations, resource selection operations, or other operations describedelsewhere herein as being performed by the base station 110.

Devices of the wireless network may communicate using theelectromagnetic spectrum, which may be subdivided based on frequency orwavelength into various classes, bands, or channels. For example,devices of the wireless network may communicate using an operating bandhaving a first frequency range (FR1), which may span from 410 MHz to7.125 GHz. As another example, devices of the wireless network maycommunicate using an operating band having a second frequency range(FR2), which may span from 24.25 GHz to 52.6 GHz. The frequenciesbetween FR1 and FR2 are sometimes referred to as mid-band frequencies.Although a portion of FR1 is greater than 6 GHz, FR1 is often referredto as a “sub-6 GHz” band. Similarly, FR2 is often referred to as a“millimeter wave” band despite being different from the extremely highfrequency (EHF) band (30 GHz-300 GHz) which is identified by theInternational Telecommunications Union (ITU) as a “millimeter wave”band. Thus, unless specifically stated otherwise, it should beunderstood that the term “sub-6 GHz” may broadly represent frequenciesless than 6 GHz, frequencies within FR1, mid-band frequencies (forexample, greater than 7.125 GHz), or a combination thereof. Similarly,unless specifically stated otherwise, it should be understood that theterm “millimeter wave” may broadly represent frequencies within the EHFband, frequencies within FR2, mid-band frequencies (for example, lessthan 24.25 GHz), or a combination thereof. The frequencies included inFR1 and FR2 may be modified, and techniques described herein areapplicable to those modified frequency ranges.

FIG. 2 is a diagram illustrating an example base station incommunication with a UE in a wireless network in accordance with thepresent disclosure. The base station may correspond to base station 110of FIG. 1. Similarly, the UE may correspond to UE 120 of FIG. 1.

Base station 110 may be equipped with T antennas 234 a through 234 t,and UE 120 may be equipped with R antennas 252 a through 252 r, where ingeneral T≥1 and R≥1. At base station 110, a transmit processor 220 mayreceive data from a data source 212 for one or more UEs, select one ormore modulation and coding schemes (MCSs) for each UE based at least inpart on channel quality indicators (CQIs) received from the UE, process(for example, encode) the data for each UE based at least in part on theMCS(s) selected for the UE, and provide data symbols for all UEs.Transmit processor 220 may also process system information (for example,for semi-static resource partitioning information (SRPI) among otherexamples) and control information (for example, CQI requests, grants, orupper layer signaling) and provide overhead symbols and control symbols.Transmit processor 220 may also generate reference symbols for referencesignals and synchronization signals. A transmit (TX) multiple-inputmultiple-output (MIMO) processor 230 may perform spatial processing (forexample, precoding) on the data symbols, the control symbols, theoverhead symbols, or the reference symbols, if applicable, and mayprovide T output symbol streams to T modulators (MODs) 232 a through 232t. Each MOD 232 may process a respective output symbol stream (forexample, for OFDM among other examples) to obtain an output samplestream. Each MOD 232 may further process (for example, convert toanalog, amplify, filter, and upconvert) the output sample stream toobtain a downlink signal. T downlink signals from MODs 232 a through 232t may be transmitted via T antennas 234 a through 234 t, respectively.

At UE 120, antennas 252 a through 252 r may receive the downlink signalsfrom base station 110 or other base stations and may provide receivedsignals to R demodulators (DEMODs) 254 a through 254 r, respectively.Each DEMOD 254 may condition (for example, filter, amplify, downconvert,and digitize) a received signal to obtain input samples. Each DEMOD 254may further process the input samples (for example, for OFDM) to obtainreceived symbols. A MIMO detector 256 may obtain received symbols fromall R DEMODs 254 a through 254 r, perform MIMO detection on the receivedsymbols if applicable, and provide detected symbols. A receive processor258 may process (for example, decode) the detected symbols, providedecoded data for UE 120 to a data sink 260, and provide decoded controlinformation and system information to a controller/processor 280. Theterm “controller/processor” may refer to one or more controllers, one ormore processors, or a combination of one or more controllers and one ormore processors. A channel processor may determine one or more of areference signal received power (RSRP) parameter, a received signalstrength indicator (RSSI) parameter, a reference signal received quality(RSRQ) parameter, or a channel quality indicator (CQI) parameter, amongother examples. In some aspects, one or more components of UE 120 may beincluded in a housing.

Network controller 130 may include communication unit 294,controller/processor 290, and memory 292. Network controller 130 mayinclude, for example, one or more devices in a core network. Networkcontroller 130 may communicate with base station 110 via communicationunit 294.

Antennas (such as antennas 234 a through 234 t or antennas 252 a through252 r) may include, or may be included within, one or more antennapanels, antenna groups, sets of antenna elements, or antenna arrays,among other examples. An antenna panel, an antenna group, a set ofantenna elements, or an antenna array may include one or more antennaelements. An antenna panel, an antenna group, a set of antenna elements,or an antenna array may include a set of coplanar antenna elements or aset of non-coplanar antenna elements. An antenna panel, an antennagroup, a set of antenna elements, or an antenna array may includeantenna elements within a single housing or antenna elements withinmultiple housings. An antenna panel, an antenna group, a set of antennaelements, or an antenna array may include one or more antenna elementscoupled to one or more transmission or reception components, such as oneor more components of FIG. 2.

On the uplink, at UE 120, a transmit processor 264 may receive andprocess data from a data source 262 as well as control information (forexample, for reports including RSRP, RSSI, RSRQ, or CQI) fromcontroller/processor 280. Transmit processor 264 may also generatereference symbols for one or more reference signals. The symbols fromtransmit processor 264 may be precoded by a TX MIMO processor 266 ifapplicable, further processed by MODs 254 a through 254 r (for example,for discrete Fourier transform spread orthogonal frequency divisionmultiplexing (DFT-s-OFDM) or orthogonal frequency division multiplexing(OFDM) with a cyclic prefix (CP) (CP-OFDM)), and transmitted to basestation 110. In some aspects, a modulator and a demodulator (forexample, MOD/DEMOD 254) of the UE 120 may be included in a modem of theUE 120. In some aspects, the UE 120 includes a transceiver. Thetransceiver may include any combination of antenna(s) 252, modulators254, demodulators 254, MIMO detector 256, receive processor 258,transmit processor 264, or TX MIMO processor 266. The transceiver may beused by a processor (for example, controller/processor 280) and memory282 to perform aspects of any of the methods described herein.

At base station 110, the uplink signals from UE 120 and other UEs may bereceived by antennas 234, processed by DEMODs 232, detected by a MIMOdetector 236 if applicable, and further processed by a receive processor238 to obtain decoded data and control information sent by UE 120.Receive processor 238 may provide the decoded data to a data sink 239and the decoded control information to controller/processor 240. Basestation 110 may include communication unit 244 and communicate tonetwork controller 130 via communication unit 244. Base station 110 mayinclude a scheduler 246 to schedule UEs 120 for downlink and uplinkcommunications. In some aspects, a modulator and a demodulator (forexample, MOD/DEMOD 232) of the base station 110 may be included in amodem of the base station 110. In some aspects, the base station 110includes a transceiver. The transceiver may include any combination ofantenna(s) 234, modulators 232, demodulators 232, MIMO detector 236,receive processor 238, transmit processor 220, or TX MIMO processor 230.The transceiver may be used by a processor (for example,controller/processor 240) and memory 242 to perform aspects of any ofthe methods described herein.

Controller/processor 240 of base station 110, controller/processor 280of UE 120, or any other component(s) of FIG. 2 may perform one or moretechniques associated with indicating user equipment capability forchannel state information measurement, as described in more detailelsewhere herein. For example, controller/processor 240 of base station110, controller/processor 280 of UE 120, or any other component(s) ofFIG. 2 may perform or direct operations of, for example, process 500 ofFIG. 5, process 600 of FIG. 6, or other processes as described herein.Memories 242 and 282 may store data and program codes for base station110 and UE 120, respectively. In some aspects, memory 242 or memory 282may include a non-transitory computer-readable medium storing one ormore instructions (for example, code or program code) for wirelesscommunication. For example, the one or more instructions, when executed(for example, directly, or after compiling, converting, or interpreting)by one or more processors of the base station 110 or the UE 120, maycause the one or more processors, the UE 120, or the base station 110 toperform or direct operations of, for example, process 500 of FIG. 5,process 600 of FIG. 6, or other processes as described herein. In someaspects, executing instructions may include running the instructions,converting the instructions, compiling the instructions, or interpretingthe instructions, among other examples.

In some aspects, the UE includes means for transmitting an indication ofa quantity of reference signals that the UE supports for measuring CSIwithin one or more slots; means for measuring one or more referencesignals in a slot of the one or more slots based at least in part ontransmitting the indication of the quantity of reference signals, and/ormeans for transmitting an indication of one or more measurements of thereceived one or more reference signals. The means for the UE to performoperations described herein may include, for example, one or more ofantenna 252, demodulator 254, MIMO detector 256, receive processor 258,transmit processor 264, TX MIMO processor 266, modulator 254,controller/processor 280, or memory 282.

In some aspects, the UE includes means for determining the quantity ofreference signals that the UE supports for measuring CSI within one ormore slots based at least in part on one or more of a configuration ofthe UE, components of the UE, or an operation mode of the UE.

In some aspects, the base station includes means for measuring anindication of a quantity of reference signals that the UE supports , formeasuring within a slot, for CSI measurement; means for transmitting oneor more reference signals in a slot of the one or more slots based atleast in part on transmitting the indication of the quantity ofreference signals, and means for measuring an indication of one or moremeasurements of the received one or more reference signals. The meansfor the base station to perform operations described herein may include,for example, one or more of transmit processor 220, TX MIMO processor230, modulator 232, antenna 234, demodulator 232, MIMO detector 236,receive processor 238, controller/processor 240, memory 242, orscheduler 246.

In some aspects, the base station includes means for determining aquantity of reference signals to transmit to the UE, for measuringwithin a slot, CSI measurement based at least in part on the indication.

FIG. 3 is a diagram illustrating examples 300, 310, and 320 of CSIreference signal (CSI-RS) beam management procedures, in accordance withthe present disclosure. As shown in FIG. 3, examples 300, 310, and 320include a UE 120 in communication with a base station 110 in a wirelessnetwork (for example, wireless network 100). However, the devices shownin FIG. 3 are provided as examples, and the wireless network may supportcommunication and beam management between other devices (for example,between a UE 120 and a base station 110 or transmit receive point (TRP),between a mobile termination node and a control node, between anintegrated access and backhaul (IAB) child node and an IAB parent node,or between a scheduled node and a scheduling node). In some aspects, theUE 120 and the base station 110 may be in a connected state (forexample, an RRC connected state).

As shown in FIG. 3, example 300 may include a base station 110 and a UE120 communicating to perform beam management using CSI-RSs. Example 300depicts a first beam management procedure (for example, P1 CSI-RS beammanagement). The first beam management procedure may be referred to as abeam selection procedure, an initial beam acquisition procedure, a beamsweeping procedure, a cell search procedure, or a beam search procedure.As shown in FIG. 3 and example 300, CSI-RSs may be configured to betransmitted from the base station 110 to the UE 120. The CSI-RSs may beconfigured to be periodic (for example, using RRC signaling),semi-persistent (for example, using media access control (MAC) controlelement (MAC-CE) signaling), or aperiodic (for example, using downlinkcontrol information (DCI)).

The first beam management procedure may include the base station 110performing beam sweeping over multiple transmit (Tx) beams. The basestation 110 may transmit a CSI-RS using each transmit beam for beammanagement. To enable the UE 120 to perform receive (Rx) beam sweeping,the base station may use a transmit beam to transmit (for example, withrepetitions) each CSI-RS at multiple times within the same RS resourceset so that the UE 120 can sweep through receive beams in multipletransmission instances. For example, if the base station 110 has a setof N transmit beams and the UE 120 has a set of M receive beams, theCSI-RS may be transmitted on each of the N transmit beams M times sothat the UE 120 may receive M instances of the CSI-RS per transmit beam.In other words, for each transmit beam of the base station 110, the UE120 may perform beam sweeping through the receive beams of the UE 120.As a result, the first beam management procedure may enable the UE 120to measure a CSI-RS on different transmit beams using different receivebeams to support selection of base station 110 transmit beams/UE 120receive beam(s) beam pair(s). The UE 120 may report the measurements tothe base station 110 to enable the base station 110 to select one ormore beam pair(s) for communication between the base station 110 and theUE 120. While example 300 has been described in connection with CSI-RSs,the first beam management procedure may also use synchronization signalblocks (SSBs) for beam management in a similar manner as describedabove.

As shown in FIG. 3, example 310 may include a base station 110 and a UE120 communicating to perform beam management using CSI-RSs. Example 310depicts a second beam management procedure (for example, P2 CSI-RS beammanagement). The second beam management procedure may be referred to asa beam refinement procedure, a base station beam refinement procedure, aTRP beam refinement procedure, or a transmit beam refinement procedure.As shown in FIG. 3 and example 310, CSI-RSs may be configured to betransmitted from the base station 110 to the UE 120. The CSI-RSs may beconfigured to be aperiodic (for example, using DCI). The second beammanagement procedure may include the base station 110 performing beamsweeping over one or more transmit beams. The one or more transmit beamsmay be a subset of all transmit beams associated with the base station110 (for example, determined based at least in part on measurementsreported by the UE 120 in connection with the first beam managementprocedure). The base station 110 may transmit a CSI-RS using eachtransmit beam of the one or more transmit beams for beam management. TheUE 120 may measure each CSI-RS using a single (for example, a same)receive beam (for example, determined based at least in part onmeasurements performed in connection with the first beam managementprocedure). The second beam management procedure may enable the basestation 110 to select a best transmit beam based at least in part onmeasurements of the CSI-RSs (for example, measured by the UE 120 usingthe single receive beam) reported by the UE 120.

As shown in FIG. 3, example 320 depicts a third beam managementprocedure (for example, P3 CSI-RS beam management). The third beammanagement procedure may be referred to as a beam refinement procedure,a UE beam refinement procedure, or a receive beam refinement procedure.As shown in FIG. 3 and example 320, one or more CSI-RSs may beconfigured to be transmitted from the base station 110 to the UE 120.The CSI-RSs may be configured to be aperiodic (for example, using DCI).The third beam management procedure may include the base station 110transmitting the one or more CSI-RSs using a single transmit beam (forexample, determined based at least in part on measurements reported bythe UE 120 in connection with the first beam management procedure or thesecond beam management procedure). To enable the UE 120 to performreceive beam sweeping, the base station may use a transmit beam totransmit (for example, with repetitions) CSI-RS at multiple times withinthe same RS resource set so that UE 120 can sweep through one or morereceive beams in multiple transmission instances. The one or morereceive beams may be a subset of all receive beams associated with theUE 120 (for example, determined based at least in part on measurementsperformed in connection with the first beam management procedure or thesecond beam management procedure). The third beam management proceduremay enable the base station 110 or the UE 120 to select a best receivebeam based at least in part on reported measurements received from theUE 120 (for example, of the CSI-RS of the transmit beam using the one ormore receive beams).

As indicated above, FIG. 3 is provided as an example of beam managementprocedures. Other examples of beam management procedures may differ fromwhat is described with respect to FIG. 3. For example, the UE 120 andthe base station 110 may perform the third beam management procedurebefore performing the second beam management procedure, or the UE 120and the base station 110 may perform a similar beam management procedureto select a UE transmit beam.

In some networks, a base station and a UE may perform one or moreprocedures including transmission of reference signals, measurement ofthe reference signals, and/or transmission of an indication ofmeasurements of the reference signals. For example, the base station andthe UE may perform one or more beam management procedures (for example,as shown in FIG. 3). As part of the one or more procedures, the basestation may transmit one or more reference signals to a UE for CSImeasurement (for example, for a beam management procedure). The UE mayattempt to detect and measure the reference signals to determine ametric associated with a wireless connection with the base station. Forexample, the UE may measure a layer 1 signal-to-interference-plus-noiseratio, or a layer 1 reference signal received power (for example, aspart of a beam management procedure). The UE may transmit, to a basestation, an indication of measurements of the reference signals. Thebase station may use the indication of measurements to configuresubsequent communications between the UE and the base station. Forexample, the base station may perform a beam selection process or a beamrefinement process based at least in part on the indication ofmeasurements. However, the base station may unnecessarily consume power,computing, communication, or network resources based at least in part ontransmitting a quantity of reference signals for CSI measurement that isgreater than a quantity of reference signals supported by the UE.Additionally or alternatively, the base station may transmit fewer CSIreference signals than the UE supports, which may degrade a beammanagement procedure (for example, allow for testing of a decreasedquantity of candidate beams) or may increase an amount of time resourcesrequired to transmit the reference signals.

In some aspects described herein, a UE may transmit an indication of aquantity of reference signals that the UE supports (for example, forreceipt during a time domain resource) for CSI measurement. The UE maycommunicate via the wireless connection based at least in part on theindication. For example, the UE may receive a quantity of referencesignals (for example, in a slot), for CSI measurement, with the quantityof received reference signals being less than or equal to the indicatedquantity of reference signals that the UE supports for measuring CSIwithin one or more slots. The UE may use the quantity of referencesignals for CSI measurement and may transmit an indication of CSImeasurements. In this way, the base station may conserve power,computing, communication, or network resources that may otherwise havebeen consumed by transmitting a quantity of reference signals for CSImeasurement that is greater than the quantity of reference signalssupported by the UE. Additionally or alternatively, the base station maytransmit an increased quantity of reference signals, based at least inpart on the UE supporting the increased quantity of reference signals,which may improve a beam management procedure (for example, allow fortesting an increased quantity of candidate beams) or may reduce anamount of time resources required to transmit the reference signals.

FIG. 4 is a diagram illustrating an example 400 of indicating userequipment capability for CSI measurement, in accordance with the presentdisclosure. As shown in FIG. 4, a UE (for example, UE 120) maycommunicate with a base station (for example, base station 110). In someaspects, the UE and the base station may be part of a wireless network(for example, wireless network 100).

In a first operation 405, the UE may receive configuration information(for example, from a base station) or determine the configurationinformation based at least in part on a communication standard. In someaspects, the UE may receive the configuration information via one ormore of a system information block, radio resource control (RRC)signaling, medium access control control elements (MAC CEs), or asidelink communication, among other examples. In some aspects, theconfiguration information may include an indication of one or moreconfiguration parameters (for example, already known to the UE) forselection by the UE, or explicit configuration information for the UE touse to configure the UE, among other examples.

In some aspects, the configuration information may indicate that the UEis to determine a quantity of reference signals that the UE supports formeasuring CSI within one or more slots. In some aspects, theconfiguration information may indicate how the UE is to determine thequantity of reference signals that the UE supports for measuring CSIwithin one or more slots. In some aspects, the configuration informationmay indicate that the UE is to transmit an indication of the quantity ofreference signals that the UE supports for measuring CSI within one ormore slots. In some aspects, the configuration information may indicatehow (for example, a configuration indicating how) the UE is to transmitthe indication of the quantity of reference signals that the UE supportsfor measuring CSI within one or more slots.

In a second operation 410, the UE may be configured based at least inpart on the configuration information. In some aspects, the UE may beconfigured to perform one or more operations described herein.

In a third operation 415, the UE may determine the quantity of referencesignals that the UE supports for measuring CSI within one or more slots.In some aspects, the quantity is based at least in part on aconfiguration of the UE (for example, a power state of the UE),components of the UE (for example, a quantity of baseband components, aquantity of antenna groups, or computing components, among otherexamples), or an operation mode of the UE (for example, a dualconnectivity mode). In some aspects, the configuration of the UE may bebased at least in part on the configuration information received, forexample, from the base station.

In some aspects, the quantity of reference signals that the UE supportsfor measuring CSI within one or more slots may include a maximumquantity of reference signals that the UE supports for measuring CSIwithin one or more slots. In some aspects, the quantity of referencesignals that the UE supports for measuring CSI within one or more slotsmay include a selected quantity, that is less than or equal to themaximum quantity, of reference signals that the UE supports for CSImeasurement.

In some aspects, the quantity of reference signals that the UE supportsfor measuring CSI within one or more slots may include a quantity ofreference signals that the UE supports for measuring CSI within one ormore slots on a first set of component carriers of a first frequencyrange or a quantity of reference signals that the UE supports formeasuring CSI within one or more slots on a second set of componentcarriers of a second frequency range (for example, separate quantitiesper frequency range). The first set of component carriers of the firstfrequency range may include a special cell and one or more secondarycells of the first frequency range. The second set of component carriersof the second frequency range may include a special cell and one or moresecondary cells of the second frequency range.

In some aspects, the quantity of reference signals that the UE supportsfor measuring CSI within one or more slots may include a quantity ofreference signals that the UE supports for measuring CSI within one ormore slots on a set of component carriers of multiple frequency ranges.For example, the quantity of reference signals that the UE supports formeasuring CSI within one or more slots may include a total quantity ofreference signals that the UE supports for the first frequency range andthe second frequency range (for example, a combined quantity for two ormore frequency ranges). The set of component carriers of the multiplefrequency ranges may include one or more special cells (for example, aspecial cell per frequency range) and one or more secondary cells of themultiple frequency ranges.

In some aspects, the quantity of reference signals that the UE supportsfor measuring CSI within one or more slots may include a quantity ofreference signals that the UE supports for measuring CSI within one ormore slots during a slot, a sub-slot, a set of slots, or anothertime-domain resource. A numerology of the time domain resource (forexample, a slot) for measuring the reference signals may be based atleast in part on a particular numerology of a particular bandwidth partof component carriers over which the UE supports the quantity ofreference signals. In some aspects, the particular bandwidth part may bea bandwidth part having a smallest numerology among bandwidth parts ofthe component carriers over which the UE supports the quantity ofreference signals. In some aspects, a numerology of a time domainresource for measuring the reference signals may be based at least inpart on a configured numerology (for example, configured based at leastin part on configuration information or a communication standard, amongother examples). In some aspects, a subcarrier spacing of a time domainresource for measuring the reference signals is based at least in parton a particular subcarrier spacing of a particular bandwidth part ofcomponent carriers over which the UE supports the quantity of referencesignals. In some aspects, the particular bandwidth part may be abandwidth part having a largest subcarrier spacing among bandwidth partsof the component carriers over which the UE supports the quantity ofreference signals. In some aspects, a subcarrier spacing of a timedomain resource for measuring the reference signals is based at least inpart on a configured subcarrier spacing (for example, configured basedat least in part on configuration information or a communicationstandard, among other examples).

In a fourth operation 420, the UE may transmit, and the base station mayreceive, an indication of the quantity of reference signals that the UEsupports for measuring CSI within one or more slots (for example,maxTotalResourcesForAcrossFreqRanges-r16 ormaxTotalResourcesForOneFreqRange-r16). In some aspects, the indicationmay indicate a quantity of resources associated with the referencesignals that the UE supports for CSI measurement (for example, for beammanagement). For example, the quantity of resources may be a quantity ofresources across all component carriers in a single frequency range (forexample, maxTotalResourcesForOneFreqRange-r16), or in all frequencyranges (for example, maxTotalResourcesForAcrossFreqRanges-r16), amongother examples. In some aspects, the indication may indicate a quantityof reference signals that the UE supports for measuring CSI within oneor more slots within a slot (for example, across all component carriersin a frequency range) (for example,maxNumberResWithinSlotAcrossCC-AcrossFR-r16 ormaxNumberResWithinSlotAcrossCC-OneFR-r16). In some aspects, the UE maytransmit the indication via a control message. For example, the UE maytransmit the indication via a physical uplink control channelcommunication. In some aspects, the UE may communicate with the basestation (for example, via an associated wireless connection) based atleast in part on the indication of the quantity of reference signalsthat the UE supports for measuring CSI within one or more slots. Forexample, the UE may receive one or more reference signals for CSImeasurement from the base station or may transmit an indication of CSImeasurement.

In a fifth operation 425, the base station may determine a quantity ofreference signals to transmit to the UE for CSI measurement. In someaspects, the quantity may be based in part on the indication of thequantity of reference signals that the UE supports for measuring CSIwithin one or more slots. For example, the quantity of reference signalsto transmit to the UE may be a same quantity as, or a quantity that isless than, the quantity of reference signals that the UE supports formeasuring CSI within one or more slots. In some aspects, the basestation may determine to transmit a quantity that is less than thequantity of reference signals that the UE supports for measuring CSIwithin one or more slots based at least in part on, for example, aconfigured beam width for an associated cell, or channel conditionmetrics, among other examples.

In a sixth operation 430, the UE may receive, and the base station maytransmit, the quantity of reference signals for CSI measurement (forexample, within a slot). In some aspects, the reference signals mayinclude synchronization signal physical broadcast channel blocks orchannel state information reference signals (CSI-RSs). In some aspects,the CSI-RSs may include one or more non-zero-power (NZP) CSI-RSs, one ormore aperiodic CSI-RSs, one or more periodic CSI-RSs, or one or moresemi-persistent CSI-RSs.

In a seventh operation 435, the UE may perform CSI measurement. In someaspects, the UE may attempt to detect and measure the reference signalsto determine a metric associated with a wireless connection with thebase station. For example, the UE may measure a layer 1signal-to-interference-plus-noise ratio, or a layer 1 reference signalreceived power.

In an eighth operation 440, the UE may transmit an indication of CSImeasurement. For example, the UE may transmit the indication of CSImeasurement via a secondary cell, a special cell, or a primary cell. Insome aspects, the UE may transmit the indication of CSI measurement viaa control message. The indication of CSI measurement may include a CSImeasurement report, a CSI interference measurement report, or otherreport.

Based at least in part on the UE receiving a quantity of referencesignals, for CSI measurement, with the quantity of received referencesignals being less than or equal to the indicated quantity of referencesignals that the UE supports for measuring CSI within one or more slots,the base station may conserve power, computing, communication, ornetwork resources that may otherwise have been consumed by transmittinga quantity of reference signals for CSI measurement that is greater thanthe quantity of reference signals supported by the UE. Additionally oralternatively, the base station may transmit an increased quantity ofreference signals, based at least in part on the UE supporting theincreased quantity of reference signals, which may improve a beammanagement procedure (for example, allow for testing an increasedquantity of candidate beams) or may reduce an amount of time resourcesrequired to transmit the reference signals.

FIG. 5 is a flowchart illustrating an example process 500 performed, forexample, by a UE in accordance with the present disclosure. Exampleprocess 500 is an example where the UE (for example, UE 120) performsoperations associated with indicating user equipment capability forchannel state information measurement.

As shown in FIG. 5, in some aspects, process 500 may includetransmitting an indication of a quantity of reference signals that theUE supports for measuring CSI within one or more slots (block 510). Forexample, the UE (such as by using transmission component 706, depictedin FIG. 700) may transmit an indication of a quantity of referencesignals that the UE supports for measuring CSI within one or more slots,as described above.

As further shown in FIG. 5, in some aspects, process 500 may includereceiving one or more reference signals in a slot of the one or moreslots based at least in part on transmitting the indication of thequantity of reference signals (block 520). For example, the UE (such asby using reception component 702, depicted in FIG. 7) may receive one ormore reference signals in a slot of the one or more slots based at leastin part on transmitting the indication of the quantity of referencesignals, as described above.

As further shown in FIG. 5, in some aspects, process 500 may includetransmitting an indication of one or more measurements of the receivedone or more reference signals (block 530). For example, the UE (such asby using transmission component 706, depicted in FIG. 7) may transmit anindication of one or more measurements of the received one or morereference signals, as described above.

Process 500 may include additional aspects, such as any single aspect orany combination of aspects described below or in connection with one ormore other processes described elsewhere herein.

In a first additional aspect, the quantity of reference signals that theUE supports for measuring CSI within one or more slots comprises amaximum quantity of reference signals that the UE supports for measuringCSI within one or more slots.

In a second additional aspect, alone or in combination with the firstaspect, the one or more measurements comprise one or more measurementsof one or more of a layer 1 signal-to-interference-plus-noise ratio, ora layer 1 reference signal received power.

In a third additional aspect, alone or in combination with one or moreof the first and second aspects, the one or more reference signalsinclude one or more of synchronization signal physical broadcast channelblocks or channel state information reference signals.

In a fourth additional aspect, alone or in combination with one or moreof the first through third aspects, the channel state informationreference signals comprise one or more of a non-zero-power channel stateinformation reference signal, an aperiodic channel state informationreference signal, a periodic channel state information reference signal,or a semi-persistent channel state information reference signal.

In a fifth additional aspect, alone or in combination with one or moreof the first through fourth aspects, the reference signals that the UEsupports for CSI measurement include reference signals that the UEsupports for CSI measurement on a set of component carriers of afrequency range.

In a sixth additional aspect, alone or in combination with one or moreof the first through fifth aspects, the quantity of reference signalsthat the UE supports for measuring CSI within one or more slots includesa quantity of reference signals that the UE supports for measuring CSIwithin one or more slots on a set of component carriers of multiplefrequency ranges.

In a seventh additional aspect, alone or in combination with one or moreof the first through sixth aspects, transmitting the indication of thequantity of reference signals that the UE supports for measuring CSIwithin one or more slots comprises transmitting the indication within acontrol message.

In an eighth additional aspect, alone or in combination with one or moreof the first through seventh aspects, a numerology of the slot is basedat least in part on a particular numerology of a particular bandwidthpart of component carriers over which the UE supports the quantity ofreference signals.

In a ninth additional aspect, alone or in combination with one or moreof the first through eighth aspects, the particular bandwidth part is abandwidth part having a smallest numerology among bandwidth parts of thecomponent carriers over which the UE supports the quantity of referencesignals.

In a tenth additional aspect, alone or in combination with one or moreof the first through ninth aspects, a numerology of the slot is based atleast in part on a configured numerology.

In an eleventh additional aspect, alone or in combination with one ormore of the first through tenth aspects, a subcarrier spacing of a slotfor measuring the reference signals is based at least in part on aparticular subcarrier spacing of a particular bandwidth part ofcomponent carriers over which the UE supports the quantity of referencesignals.

In a twelfth additional aspect, alone or in combination with one or moreof the first through eleventh aspects, the particular bandwidth part isa bandwidth part having a largest subcarrier spacing among bandwidthparts of the component carriers over which the UE supports the quantityof reference signals.

In a thirteenth additional aspect, alone or in combination with one ormore of the first through twelfth aspects, a subcarrier spacing of theslot is based at least in part on a configured subcarrier spacing.

In a fourteenth additional aspect, alone or in combination with one ormore of the first through thirteenth aspects, process 500 includesdetermining the quantity of reference signals that the UE supports formeasuring CSI within one or more slots based at least in part on one ormore of a configuration of the UE, components of the UE, or an operationmode of the UE.

In a fifteenth additional aspect, alone or in combination with one ormore of the first through fourteenth aspects, the quantity of referencesignals that the UE supports for measuring CSI within one or more slotsis based at least in part on one or more of a configuration of the UE,components of the UE, or an operation mode of the UE.

Although FIG. 5 shows example blocks of process 500, in some aspects,process 500 may include additional blocks, fewer blocks, differentblocks, or differently arranged blocks than those depicted in FIG. 5.Additionally or alternatively, two or more of the blocks of process 500may be performed in parallel.

FIG. 6 is a flowchart illustrating an example process 600 performed, forexample, by a base station in accordance with the present disclosure.Example process 600 is an example where the base station (for example,base station 110) performs operations associated with indicating userequipment capability for channel state information measurement.

As shown in FIG. 6, in some aspects, process 600 may include receivingan indication of a quantity of reference signals that the UE supportsfor measuring CSI within one or more slots (block 610). For example, thebase station (such as by using reception component 802, depicted in FIG.8) may receive an indication of a quantity of reference signals that theUE supports for measuring CSI within one or more slots, as describedabove.

As further shown in FIG. 6, in some aspects, process 600 may includetransmitting one or more reference signals in a slot of the one or moreslots based at least in part on transmitting the indication of thequantity of reference signals (block 620). For example, the base station(such as by using transmission component 806, depicted in FIG. 8) maytransmit one or more reference signals in a slot of the one or moreslots based at least in part on transmitting the indication of thequantity of reference signals, as described above.

As further shown in FIG. 6, in some aspects, process 600 may includereceiving an indication of one or more measurements of the received oneor more reference signals (block 630). For example, the base station(such as by using reception component 802, depicted in FIG. 8) mayreceive an indication of one or more measurements of the received one ormore reference signals, as described above.

Process 600 may include additional aspects, such as any single aspect orany combination of aspects described below or in connection with one ormore other processes described elsewhere herein.

In a first additional aspect, the quantity of reference signals that theUE supports for measuring CSI within one or more slots comprises amaximum quantity of reference signals that the UE supports for measuringCSI within one or more slots.

In a second additional aspect, alone or in combination with the firstaspect, the one or more measurements comprise one or more measurementsof one or more of a layer 1 signal-to-interference-plus-noise ratio, ora layer 1 reference signal received power.

In a third additional aspect, alone or in combination with one or moreof the first and second aspects, the one or more reference signalsinclude one or more of synchronization signal physical broadcast channelblocks or channel state information reference signals.

In a fourth additional aspect, alone or in combination with one or moreof the first through third aspects, the channel state informationreference signals comprise one or more of a non-zero-power channel stateinformation reference signal, an aperiodic channel state informationreference signal, a periodic channel state information reference signal,or a semi-persistent channel state information reference signal.

In a fifth additional aspect, alone or in combination with one or moreof the first through fourth aspects, the reference signals that the UEsupports for CSI measurement include reference signals that the UEsupports for CSI measurement on a set of component carriers of afrequency range.

In a sixth additional aspect, alone or in combination with one or moreof the first through fifth aspects, the quantity of reference signalsthat the UE supports for measuring CSI within one or more slots includesa quantity of reference signals that the UE supports for measuring CSIwithin one or more slots on a set of component carriers of multiplefrequency ranges.

In a seventh additional aspect, alone or in combination with one or moreof the first through sixth aspects, receiving the indication of thequantity of reference signals that the UE supports for measuring CSIwithin one or more slots comprises receiving the indication within acontrol message.

In an eighth additional aspect, alone or in combination with one or moreof the first through seventh aspects, a numerology of the slot is basedat least in part on a particular numerology of a particular bandwidthpart of component carriers over which the UE supports the quantity ofreference signals.

In a ninth additional aspect, alone or in combination with one or moreof the first through eighth aspects, the particular bandwidth part is abandwidth part having a smallest numerology among bandwidth parts of thecomponent carriers over which the UE supports the quantity of referencesignals.

In a tenth additional aspect, alone or in combination with one or moreof the first through ninth aspects, a numerology of the slot is based atleast in part on a configured numerology.

In an eleventh additional aspect, alone or in combination with one ormore of the first through tenth aspects, a subcarrier spacing of theslot is based at least in part on a particular subcarrier spacing of aparticular bandwidth part of component carriers over which the UEsupports the quantity of reference signals.

In a twelfth additional aspect, alone or in combination with one or moreof the first through eleventh aspects, the particular bandwidth part isa bandwidth part having a largest subcarrier spacing among bandwidthparts of the component carriers over which the UE supports the quantityof reference signals.

In a thirteenth additional aspect, alone or in combination with one ormore of the first through twelfth aspects, a subcarrier spacing of theslot is based at least in part on a configured subcarrier spacing.

In a fourteenth additional aspect, alone or in combination with one ormore of the first through thirteenth aspects, process 600 includesdetermining a quantity of reference signals to transmit to the UE forCSI measurement based at least in part on the indication.

In a fifteenth additional aspect, alone or in combination with one ormore of the first through fourteenth aspects, the quantity of referencesignals that the UE supports for measuring CSI within one or more slotsis based at least in part on one or more of a configuration of the UE,components of the UE, or an operation mode of the UE.

Although FIG. 6 shows example blocks of process 600, in some aspects,process 600 may include additional blocks, fewer blocks, differentblocks, or differently arranged blocks than those depicted in FIG. 6.Additionally or alternatively, two or more of the blocks of process 600may be performed in parallel.

FIG. 7 is a block diagram of an example apparatus 700 for wirelesscommunication in accordance with the present disclosure. The apparatus700 may be a UE, or a UE may include the apparatus 700. In some aspects,the apparatus 700 includes a reception component 702, a communicationmanager 704, and a transmission component 706, which may be incommunication with one another (for example, via one or more buses). Asshown, the apparatus 700 may communicate with another apparatus 708(such as a UE, a base station, or another wireless communication device)using the reception component 702 and the transmission component 706.

In some aspects, the apparatus 700 may be configured to perform one ormore operations described herein in connection with FIG. 4. Additionallyor alternatively, the apparatus 700 may be configured to perform one ormore processes described herein, such as process 500 of FIG. 5. In someaspects, the apparatus 700 may include one or more components of the UEdescribed above in connection with FIG. 2.

The reception component 702 may receive communications, such asreference signals, control information, data communications, or acombination thereof, from the apparatus 708. The reception component 702may provide received communications to one or more other components ofthe apparatus 700, such as the communication manager 704. In someaspects, the reception component 702 may perform signal processing onthe received communications (such as filtering, amplification,demodulation, analog-to-digital conversion, demultiplexing,deinterleaving, de-mapping, equalization, interference cancellation, ordecoding, among other examples), and may provide the processed signalsto the one or more other components. In some aspects, the receptioncomponent 702 may include one or more antennas, a demodulator, a MIMOdetector, a receive processor, a controller/processor, a memory, or acombination thereof, of the UE described above in connection with FIG.2.

The transmission component 706 may transmit communications, such asreference signals, control information, data communications, or acombination thereof, to the apparatus 708. In some aspects, thecommunication manager 704 may generate communications and may transmitthe generated communications to the transmission component 706 fortransmission to the apparatus 708. In some aspects, the transmissioncomponent 706 may perform signal processing on the generatedcommunications (such as filtering, amplification, modulation,digital-to-analog conversion, multiplexing, interleaving, mapping, orencoding, among other examples), and may transmit the processed signalsto the apparatus 708. In some aspects, the transmission component 706may include one or more antennas, a modulator, a transmit MIMOprocessor, a transmit processor, a controller/processor, a memory, or acombination thereof, of the UE described above in connection with FIG.2. In some aspects, the transmission component 706 may be co-locatedwith the reception component 702 in a transceiver.

The communication manager 704 may transmit or may cause the transmissioncomponent 706 to transmit an indication of a quantity of referencesignals that the UE supports for measuring CSI within one or more slots.The communication manager 704 may communicate via a wireless connectionbased at least in part on the indication. For example, the communicationmanager 704 may receive or may cause the reception component 702 toreceive one or more reference signals in a slot of the one or more slotsbased at least in part on transmitting the indication of the quantity ofreference signals. The communication manager 704 may transmit or maycause the transmission component 706 to transmit an indication of one ormore measurements of the received one or more reference signals. In someaspects, the communication manager 704 may perform one or moreoperations described elsewhere herein as being performed by one or morecomponents of the communication manager 704.

The communication manager 704 may include a controller/processor, amemory, or a combination thereof, of the UE described above inconnection with FIG. 2. In some aspects, the communication manager 704includes a set of components, such as a determination component 710.Alternatively, the set of components may be separate and distinct fromthe communication manager 704. In some aspects, one or more componentsof the set of components may include or may be implemented within acontroller/processor, a memory, or a combination thereof, of the UEdescribed above in connection with FIG. 2. Additionally oralternatively, one or more components of the set of components may beimplemented at least in part as software stored in a memory. Forexample, a component (or a portion of a component) may be implemented asinstructions or code stored in a non-transitory computer-readable mediumand executable by a controller or a processor to perform the functionsor operations of the component.

The transmission component 706 may transmit an indication of a quantityof reference signals that the UE supports for measuring CSI within oneor more slots. The reception component 702 and the transmissioncomponent 706 may communicate via a wireless connection based at leastin part on the indication. For example, the reception component 702 mayreceive one or more reference signals in a slot of the one or more slotsbased at least in part on transmitting the indication of the quantity ofreference signals. The transmission component 706 may transmit anindication of one or more measurements of the received one or morereference signals.

The determination component 710 may determine the quantity of referencesignals that the UE supports for measuring CSI within one or more slotsbased at least in part on one or more of: a configuration of the UE,components of the UE, or an operation mode of the UE.

In some aspects, the quantity of reference signals that the UE supportsfor measuring CSI within one or more slots comprises a maximum quantityof reference signals that the UE supports for measuring CSI within oneor more slots.

In some aspects, the one or more measurements comprises a measurement ofone or more of: a layer 1 signal-to-interference-plus-noise ratio, or alayer 1 reference signal received power.

In some aspects, the one or more reference signals include one or moreof synchronization signal physical broadcast channel blocks or channelstate information reference signals.

In some aspects, the channel state information reference signalscomprise one or more of: a non-zero-power channel state informationreference signal, an aperiodic channel state information referencesignal, a periodic channel state information reference signal, or asemi-persistent channel state information reference signal.

In some aspects, the reference signals that the UE supports for CSImeasurement include reference signals that the UE supports for CSImeasurement on a set of component carriers of a frequency range.

In some aspects, the quantity of reference signals that the UE supportsfor measuring CSI within one or more slots includes a quantity ofreference signals that the UE supports for measuring CSI within one ormore slots on a set of component carriers of multiple frequency ranges.

In some aspects, transmitting the indication of the quantity ofreference signals that the UE supports for measuring CSI within one ormore slots comprises transmitting the indication within a controlmessage.

In some aspects, a numerology of the slot is based at least in part on aparticular numerology of a particular bandwidth part of componentcarriers over which the UE supports the quantity of reference signals.

In some aspects, the particular bandwidth part is a bandwidth parthaving a smallest numerology among bandwidth parts of the componentcarriers over which the UE supports the quantity of reference signals.

In some aspects, a numerology of the slot is based at least in part on aconfigured numerology.

In some aspects, a subcarrier spacing of the slot is based at least inpart on a particular subcarrier spacing of a particular bandwidth partof component carriers over which the UE supports the quantity ofreference signals.

In some aspects, the particular bandwidth part is a bandwidth parthaving a largest subcarrier spacing among bandwidth parts of thecomponent carriers over which the UE supports the quantity of referencesignals.

In some aspects, a subcarrier spacing of the slot is based at least inpart on a configured subcarrier spacing.

The number and arrangement of components shown in FIG. 7 are provided asan example. In practice, there may be additional components, fewercomponents, different components, or differently arranged componentsthan those shown in FIG. 7. Furthermore, two or more components shown inFIG. 7 may be implemented within a single component, or a singlecomponent shown in FIG. 7 may be implemented as multiple, distributedcomponents. Additionally or alternatively, a set of (one or more)components shown in FIG. 7 may perform one or more functions describedas being performed by another set of components shown in FIG. 7.

FIG. 8 is a block diagram of an example apparatus 800 for wirelesscommunication in accordance with the present disclosure. The apparatus800 may be a base station, or a base station may include the apparatus800. In some aspects, the apparatus 800 includes a reception component802, a communication manager 804, and a transmission component 806,which may be in communication with one another (for example, via one ormore buses). As shown, the apparatus 800 may communicate with anotherapparatus 808 (such as a UE, a base station, or another wirelesscommunication device) using the reception component 802 and thetransmission component 806.

In some aspects, the apparatus 800 may be configured to perform one ormore operations described herein in connection with FIG. 4. Additionallyor alternatively, the apparatus 800 may be configured to perform one ormore processes described herein, such as process 600 of FIG. 6. In someaspects, the apparatus 800 may include one or more components of thebase station described above in connection with FIG. 2.

The reception component 802 may receive communications, such asreference signals, control information, data communications, or acombination thereof, from the apparatus 808. The reception component 802may provide received communications to one or more other components ofthe apparatus 800, such as the communication manager 804. In someaspects, the reception component 802 may perform signal processing onthe received communications (such as filtering, amplification,demodulation, analog-to-digital conversion, demultiplexing,deinterleaving, de-mapping, equalization, interference cancellation, ordecoding, among other examples), and may provide the processed signalsto the one or more other components. In some aspects, the receptioncomponent 802 may include one or more antennas, a demodulator, a MIMOdetector, a receive processor, a controller/processor, a memory, or acombination thereof, of the base station described above in connectionwith FIG. 2.

The transmission component 806 may transmit communications, such asreference signals, control information, data communications, or acombination thereof, to the apparatus 808. In some aspects, thecommunication manager 804 may generate communications and may transmitthe generated communications to the transmission component 806 fortransmission to the apparatus 808. In some aspects, the transmissioncomponent 806 may perform signal processing on the generatedcommunications (such as filtering, amplification, modulation,digital-to-analog conversion, multiplexing, interleaving, mapping, orencoding, among other examples), and may transmit the processed signalsto the apparatus 808. In some aspects, the transmission component 806may include one or more antennas, a modulator, a transmit MIMOprocessor, a transmit processor, a controller/processor, a memory, or acombination thereof, of the base station described above in connectionwith FIG. 2. In some aspects, the transmission component 806 may beco-located with the reception component 802 in a transceiver.

The communication manager 804 may receive or may cause the receptioncomponent 802 to receive an indication of a quantity of referencesignals that the UE supports for measuring CSI within one or more slots.The communication manager 804 may communicate via a wireless connectionbased at least in part on the indication. For example, the communicationmanager 804 may transmit or may cause the transmission component 806 totransmit one or more reference signals in a slot of the one or moreslots based at least in part on receiving the indication of the quantityof reference signals. The communication manager 804 may receive or maycause the reception component 802 to receive an indication of one ormore measurements of the received one or more reference signals. In someaspects, the communication manager 804 may perform one or moreoperations described elsewhere herein as being performed by one or morecomponents of the communication manager 804.

The communication manager 804 may include a controller/processor, amemory, a scheduler, a communication unit, or a combination thereof, ofthe base station described above in connection with FIG. 2. In someaspects, the communication manager 804 includes a set of components,such as a determination component 810. Alternatively, the set ofcomponents may be separate and distinct from the communication manager804. In some aspects, one or more components of the set of componentsmay include or may be implemented within a controller/processor, amemory, a scheduler, a communication unit, or a combination thereof, ofthe base station described above in connection with FIG. 2. Additionallyor alternatively, one or more components of the set of components may beimplemented at least in part as software stored in a memory. Forexample, a component (or a portion of a component) may be implemented asinstructions or code stored in a non-transitory computer-readable mediumand executable by a controller or a processor to perform the functionsor operations of the component.

The reception component 802 may receive an indication of a quantity ofreference signals that the UE supports for measuring CSI within one ormore slots. The reception component 802 and the transmission component806 may communicate via a wireless connection based at least in part onthe indication. For example, the transmission component 706 may transmitone or more reference signals in a slot of the one or more slots basedat least in part on receiving the indication of the quantity ofreference signals. The reception component 702 may receive an indicationof one or more measurements of the received one or more referencesignals.

The determination component 810 may determine a quantity of referencesignals to transmit to the UE for CSI measurement based at least in parton the indication.

In some aspects, the quantity of reference signals that the UE supportsfor measuring CSI within one or more slots comprises a maximum quantityof reference signals that the UE supports for measuring CSI within oneor more slots.

In some aspects, the CSI measurement comprises a measurement of one ormore of: a layer 1 signal-to-interference-plus-noise ratio, or a layer 1reference signal received power.

In some aspects, the reference signals include one or more ofsynchronization signal physical broadcast channel blocks or channelstate information reference signals.

In some aspects, the channel state information reference signalscomprise one or more of: a non-zero-power channel state informationreference signal, an aperiodic channel state information referencesignal, a periodic channel state information reference signal, or asemi-persistent channel state information reference signal.

In some aspects, the reference signals that the UE supports for CSImeasurement include reference signals that the UE supports for CSImeasurement on a set of component carriers of a frequency range.

In some aspects, the quantity of reference signals that the UE supportsfor measuring CSI within one or more slots includes a quantity ofreference signals that the UE supports for measuring CSI within one ormore slots on a set of component carriers of multiple frequency ranges.

In some aspects, receiving the indication of the quantity of referencesignals that the UE supports for measuring CSI within one or more slotscomprises receiving the indication within a control message.

In some aspects, a numerology of the slot is based at least in part on aparticular numerology of a particular bandwidth part of componentcarriers over which the UE supports the quantity of reference signals.

In some aspects, the particular bandwidth part is a bandwidth parthaving a smallest numerology among bandwidth parts of the componentcarriers over which the UE supports the quantity of reference signals.

In some aspects, a numerology of the slot is based at least in part on aconfigured numerology.

In some aspects, a subcarrier spacing of the slot based at least in parton a particular subcarrier spacing of a particular bandwidth part ofcomponent carriers over which the UE supports the quantity of referencesignals.

In some aspects, the particular bandwidth part is a bandwidth parthaving a largest subcarrier spacing among bandwidth parts of thecomponent carriers over which the UE supports the quantity of referencesignals.

In some aspects, a subcarrier spacing of the slot is based at least inpart on a configured subcarrier spacing.

In some aspects, the quantity of reference signals that the UE supportsfor measuring CSI within one or more slots is based at least in part onone or more of: a configuration of the UE; components of the UE; or anoperation mode of the UE.

The number and arrangement of components shown in FIG. 8 are provided asan example. In practice, there may be additional components, fewercomponents, different components, or differently arranged componentsthan those shown in FIG. 8. Furthermore, two or more components shown inFIG. 8 may be implemented within a single component, or a singlecomponent shown in FIG. 8 may be implemented as multiple, distributedcomponents. Additionally or alternatively, a set of (one or more)components shown in FIG. 8 may perform one or more functions describedas being performed by another set of components shown in FIG. 8.

The foregoing disclosure provides illustration and description, but isnot intended to be exhaustive or to limit the aspects to the preciseforms disclosed. Modifications and variations may be made in light ofthe above disclosure or may be acquired from practice of the aspects.

As used herein, the term “component” is intended to be broadly construedas hardware, firmware, or a combination of hardware and software. Asused herein, a processor is implemented in hardware, firmware, or acombination of hardware and software. It will be apparent that systemsor methods described herein may be implemented in different forms ofhardware, firmware, or a combination of hardware and software. Theactual specialized control hardware or software code used to implementthese systems or methods is not limiting of the aspects. Thus, theoperation and behavior of the systems or methods were described hereinwithout reference to specific software code—it being understood thatsoftware and hardware can be designed to implement the systems ormethods based, at least in part, on the description herein.

As used herein, satisfying a threshold may, depending on the context,refer to a value being greater than the threshold, greater than or equalto the threshold, less than the threshold, less than or equal to thethreshold, equal to the threshold, or not equal to the threshold, amongother examples.

Even though particular combinations of features are recited in theclaims or disclosed in the specification, these combinations are notintended to limit the disclosure of various aspects. In fact, many ofthese features may be combined in ways not specifically recited in theclaims or disclosed in the specification. Although each dependent claimlisted below may directly depend on only one claim, the disclosure ofvarious aspects includes each dependent claim in combination with everyother claim in the claim set. As used herein, a phrase referring to “atleast one of” a list of items refers to any combination of those items,including single members. As an example, “at least one of: a, b, or c”is intended to cover a, b, c, a-b, a-c, b-c, and a-b-c, as well as anycombination with multiples of the same element (for example, a-a, a-a-a,a-a-b, a-a-c, a-b-b, a-c-c, b-b, b-b-b, b-b-c, c-c, and c-c-c or anyother ordering of a, b, and c).

No element, act, or instruction used herein should be construed ascritical or essential unless explicitly described as such. Also, as usedherein, the articles “a” and “an” are intended to include one or moreitems and may be used interchangeably with “one or more.” Further, asused herein, the article “the” is intended to include one or more itemsreferenced in connection with the article “the” and may be usedinterchangeably with “the one or more.” Furthermore, as used herein, theterms “set” and “group” are intended to include one or more items (forexample, related items, unrelated items, or a combination of related andunrelated items), and may be used interchangeably with “one or more.”Where only one item is intended, the phrase “only one” or similarlanguage is used. Also, as used herein, the terms “has,” “have,”“having,” and similar terms are intended to be open-ended terms.Further, the phrase “based on” is intended to mean “based, at least inpart, on” unless explicitly stated otherwise. Also, as used herein, theterm “or” is intended to be inclusive when used in a series and may beused interchangeably with “and/or,” unless explicitly stated otherwise(for example, if used in combination with “either” or “only one of”).

What is claimed is:
 1. A method of wireless communication performed by auser equipment (UE), comprising: transmitting an indication of aquantity of reference signals that the UE supports for measuring channelstate information (CSI) within one or more slots; receiving one or morereference signals in a slot of the one or more slots based at least inpart on transmitting the indication of the quantity of referencesignals; and transmitting an indication of one or more measurements ofthe received one or more reference signals.
 2. The method of claim 1,wherein the quantity of reference signals that the UE supports formeasuring CSI within one or more slots comprises a maximum quantity ofreference signals that the UE supports for measuring CSI within one ormore slots.
 3. The method of claim 1, wherein the one or moremeasurements comprise one or more measurements of one or more of: alayer 1 signal-to-interference-plus-noise ratio, or a layer 1 referencesignal received power.
 4. The method of claim 1, wherein the one or morereference signals include one or more of synchronization signal physicalbroadcast channel blocks or channel state information reference signals.5. The method of claim 4, wherein the channel state informationreference signals comprise one or more of: a non-zero-power channelstate information reference signal, an aperiodic channel stateinformation reference signal, a periodic channel state informationreference signal, or a semi-persistent channel state informationreference signal.
 6. The method of claim 1, wherein the referencesignals that the UE supports for CSI measurement include referencesignals that the UE supports for CSI measurement on a set of componentcarriers of a frequency range
 7. The method of claim 1, wherein thequantity of reference signals that the UE supports for measuring CSIwithin one or more slots includes a quantity of reference signals thatthe UE supports for measuring CSI within one or more slots on a set ofcomponent carriers of multiple frequency ranges.
 8. The method of claim1, wherein transmitting the indication of the quantity of referencesignals that the UE supports for measuring CSI within one or more slotscomprises transmitting the indication within a control message.
 9. Themethod of claim 1, wherein a numerology of the slot is based at least inpart on a particular numerology of a particular bandwidth part ofcomponent carriers over which the UE supports the quantity of referencesignals.
 10. The method of claim 9, wherein the particular bandwidthpart is a bandwidth part having a smallest numerology among bandwidthparts of the component carriers over which the UE supports the quantityof reference signals.
 11. The method of claim 1, wherein a numerology ofthe slot is based at least in part on a configured numerology.
 12. Themethod of claim 1, wherein a subcarrier spacing of the slot is based atleast in part on a particular subcarrier spacing of a particularbandwidth part of component carriers over which the UE supports thequantity of reference signals.
 13. The method of claim 12, wherein theparticular bandwidth part is a bandwidth part having a largestsubcarrier spacing among bandwidth parts of the component carriers overwhich the UE supports the quantity of reference signals.
 14. The methodof claim 1, wherein a subcarrier spacing of the slot is based at leastin part on a configured subcarrier spacing.
 15. The method of claim 1,further comprising determining the quantity of reference signals thatthe UE supports for measuring CSI within one or more slots based atleast in part on one or more of: a configuration of the UE, componentsof the UE, or an operation mode of the UE.
 16. A user equipment (UE) forwireless communication, comprising: a memory; and one or more processorsoperatively coupled to the memory, the memory and the one or moreprocessors configured to: transmit an indication of a quantity ofreference signals that the UE supports for measuring CSI within one ormore slots; receive one or more reference signals in a slot of the oneor more slots based at least in part on transmitting the indication ofthe quantity of reference signals; and transmit an indication of one ormore measurements of the received one or more reference signals.
 17. TheUE of claim 16, wherein the quantity of reference signals that the UEsupports for measuring CSI within one or more slots comprises a maximumquantity of reference signals that the UE supports for measuring CSIwithin one or more slots.
 18. The UE of claim 16, wherein the one ormore measurements comprise one or more measurements of one or more of: alayer 1 signal-to-interference-plus-noise ratio, or a layer 1 referencesignal received power.
 19. The UE of claim 16, wherein the one or morereference signals include one or more of synchronization signal physicalbroadcast channel blocks or channel state information reference signals.20. The UE of claim 19, wherein the channel state information referencesignals comprise one or more of: a non-zero-power channel stateinformation reference signal, an aperiodic channel state informationreference signal, a periodic channel state information reference signal,or a semi-persistent channel state information reference signal.
 21. TheUE of claim 16, wherein the reference signals that the UE supports forCSI measurement include reference signals that the UE supports for CSImeasurement on a set of component carriers of a frequency range.
 22. TheUE of claim 16, wherein the quantity of reference signals that the UEsupports for measuring CSI within one or more slots includes a quantityof reference signals that the UE supports for measuring CSI within oneor more slots on a set of component carriers of multiple frequencyranges.
 23. The UE of claim 16, wherein the one or more processors, whentransmitting the indication of the quantity of reference signals thatthe UE supports for measuring CSI within one or more slots, areconfigured to transmit the indication within a control message.
 24. TheUE of claim 16, wherein a numerology of the slot is based at least inpart on a particular numerology of a particular bandwidth part ofcomponent carriers over which the UE supports the quantity of referencesignals.
 25. The UE of claim 24, wherein the particular bandwidth partis a bandwidth part having a smallest numerology among bandwidth partsof the component carriers over which the UE supports the quantity ofreference signals.
 26. The UE of claim 16, wherein a numerology of theslot is based at least in part on a configured numerology.
 27. The UE ofclaim 16, wherein a subcarrier spacing of the slot is based at least inpart on a particular subcarrier spacing of a particular bandwidth partof component carriers over which the UE supports the quantity ofreference signals.
 28. The UE of claim 27, wherein the particularbandwidth part is a bandwidth part having a largest subcarrier spacingamong bandwidth parts of the component carriers over which the UEsupports the quantity of reference signals.
 29. The UE of claim 16,wherein a subcarrier spacing of the slot is based at least in part on aconfigured subcarrier spacing.
 30. The UE of claim 16, wherein the oneor more processors are further configured to determine the quantity ofreference signals that the UE supports for measuring CSI within one ormore slots based at least in part on one or more of: a configuration ofthe UE; components of the UE; or an operation mode of the UE.